One vertex per element, one color per generator, with an edge from x to x·s.
(3,9)(8,15)(10,13)(11,16)(17,18,22,23)(19,25,27,20)(21,29,30,24)(26,28,32,31)(33,34)(35,39)(36,40)(37,45)(38,42)(41,46)(43,44)(47,48)(1,2,6,7)(3,8,9,15)(4,12,14,5)(10,11,13,16)(18,23)(20,25)(24,29)(28,31)(33,35)(34,39)(36,42)(37,43)(38,40)(41,47)(44,45)(46,48)(2,7)(5,12)(8,15)(11,16)(17,18)(19,20)(21,24)(22,23)(25,27)(26,28)(29,30)(31,32)(33,34,38,42)(35,36,40,39)(37,45,46,41)(43,47,48,44)(1,3)(2,8)(4,13)(5,11)(6,9)(7,15)(10,14)(12,16)(17,19)(18,20)(21,26)(22,27)(23,25)(24,28)(29,31)(30,32)(33,35)(34,36)(37,43)(38,40)(39,42)(41,44)(45,47)(46,48) involution — undirected(1,4)(2,5)(3,10)(6,14)(7,12)(8,16)(9,13)(11,15)(17,20)(18,19)(21,28)(22,25)(23,27)(24,26)(29,32)(30,31)(33,36)(34,40)(35,42)(37,44)(38,39)(41,48)(43,45)(46,47) involution — undirected(1,5)(2,4)(3,11)(6,12)(7,14)(8,13)(9,16)(10,15)(17,21,22,30)(18,24,23,29)(19,26,27,32)(20,28,25,31)(33,37)(34,41)(35,43)(36,44)(38,46)(39,47)(40,48)(42,45)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.